Preferred technique

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in THE MAIN WALL
the article says, to avoid the pressure drop, and you'll be OK.

Noel

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  • bovide_4
    bovide_4 Posts: 161


    Which is the preferred method to supply DHW to a 6-family apartment building:
    New boiler to be installed: Oil fired, Steam
    Previous DHW: tankless coil w/mixing valve

    1)Spec the new boiler with a tankless coil, and use an insulated storage tank.

    2)Pipe a zone from below the water line to an indirect water heater.

    *I am leaning toward the indirect to eliminate any issues of unwanted steam while supplying DHW.
  • Unknown
    Unknown
    Depends on load size

    I like the indirect, if it's that big a load.

    http://trainingroom.slantfin.com/articles/nm0304-1.html

    Noel
  • bovide_4
    bovide_4 Posts: 161


    Could dirty condensate from the old returns foul the HX of the indirect? I will flush out the returns, so the water condition should be reasonable. Would an inline strainer help, or would it add significantly to the pressure drop.
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